package com.atguigu.gulimall.order.config;

import feign.RequestInterceptor;
import feign.RequestTemplate;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * @Author: charls
 * @Description:TODO
 * @Date: 2023/06/19/ 18:00
 * @Version: 1.0
 */
@Configuration
public class MyFeignConfig {

    @Bean("requestInterceptor")
    public RequestInterceptor requestInterceptor(){
        return new RequestInterceptor() {
            @Override
            public void apply(RequestTemplate requestTemplate) {
                //1、拿到刚进来的请求
                ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
                if (attributes!=null){
                    HttpServletRequest request = attributes.getRequest();//老请求
                    if (request!=null){
                        //2、同步请求头数据cookie
                        String cookie = request.getHeader("Cookie");
                        //3、给新请求同步老请求的cookie
                        requestTemplate.header("Cookie", cookie);
                    }
                }
            }
        };
    }
}